keyword
MENU ▼
Read by QxMD icon Read
search

Killer immunoglobulin like receptors

keyword
https://www.readbyqxmd.com/read/28732438/investigation-of-killer-immunoglobulin-like-receptor-kir-and-hla-genotypes-to-predict-the-occurrence-of-acute-allograft-rejection-after-kidney-transplantation
#1
Davood Jafari, Mohsen Nafar, Mir Saeed Yekaninejad, Razieh Abdolvahabi, Mahboob Lesan Pezeshki, Efat Razaghi, Ali Akbar Amirzargar
After kidney transplantation, natural killer (NK) cells play a pivotal role in triggering the immune response to the allogeneic grafts primarily by their killer-cell immunoglobulin-like receptors (KIR). This process may be one mechanism that contributes to graft rejection. In this study, we have evaluated whether acute rejection after kidney transplantation was associated with predicted NK cell alloreactivity based on KIR gene and ligand along with KIR/HLA compound genotype analysis. After kidney transplantation, natural killer (NK) cells play a pivotal role in triggering the immune response to the allogeneic grafts primarily by their killer-cell immunoglobulin-like receptors (KIR)...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28708886/kir3dl01-upregulation-on-gut-natural-killer-cells-in-response-to-siv-infection-of-kir-and-mhc-class-i-defined-rhesus-macaques
#2
Moritz Ries, Matthew R Reynolds, Ksenia Bashkueva, Kristin Crosno, Saverio Capuano, Trent M Prall, Roger Wiseman, David H O'Connor, Eva G Rakasz, Hajime Uno, Jeffrey D Lifson, David T Evans
Natural killer cells provide an important early defense against viral pathogens and are regulated in part by interactions between highly polymorphic killer-cell immunoglobulin-like receptors (KIRs) on NK cells and their MHC class I ligands on target cells. We previously identified MHC class I ligands for two rhesus macaque KIRs: KIR3DL01 recognizes Mamu-Bw4 molecules and KIR3DL05 recognizes Mamu-A1*002. To determine how these interactions influence NK cell responses, we infected KIR3DL01+ and KIR3DL05+ macaques with and without defined ligands for these receptors with SIVmac239, and monitored NK cell responses in peripheral blood and lymphoid tissues...
July 14, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28695292/specificity-of-inhibitory-kirs-enables-nk-cells-to-detect-changes-in-an-altered-peptide-environment
#3
Paola Carrillo-Bustamante, Rob J de Boer, Can Keşmir
The activity of natural killer (NK) cells is tightly regulated by inhibitory and activating receptors. Inhibitory killer immunoglobulin-like receptors (iKIRs) survey the surface of target cells by monitoring the expression of human leukocyte antigen (HLA) class I. The binding of iKIRs has been shown to be sensitive to the peptides presented by HLA class I, implying that iKIRs have the ability to detect the changes in the repertoire of peptide-HLA class I complexes (pHLA), a process occurring during viral infection and in tumor cells...
July 10, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28695291/missing-or-altered-self-human-nk-cell-receptors-that-recognize-hla-c
#4
REVIEW
Hugo G Hilton, Peter Parham
Natural killer (NK) cells are fast-acting and versatile lymphocytes that are critical effectors of innate immunity, adaptive immunity, and placental development. Controlling NK cell function are the interactions between killer-cell immunoglobulin-like receptors (KIRs) and their HLA-A, HLA-B and HLA-C ligands. Due to the extensive polymorphism of both KIR and HLA class I, these interactions are highly diversified and specific combinations correlate with protection or susceptibility to a range of infectious, autoimmune, and reproductive disorders...
July 10, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28695283/aids-in-chimpanzees-the-role-of-mhc-genes
#5
REVIEW
Natasja G de Groot, Corinne M C Heijmans, Ronald E Bontrop
The ancestral progenitor of common chimpanzees and bonobos experienced a selective sweep that ravaged its major histocompatibility complex (MHC) class I repertoire. The causative agent was probably an ancestral retrovirus, highly related to the contemporary HIV-1 strain, which initiated the acquired immunodeficiency syndrome pandemic in the human population. As a direct result, MHC class I allotypes with the capability of targeting conserved retroviral elements were enriched in the ancestral progenitor. Even today, the impact can be traced back by studying the functional capacities of the contemporary MHC class I allotypes of common chimpanzees...
July 10, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28688202/influence-of-human-leukocyte-antigen-hla-alleles-and-killer-cell-immunoglobulin-like-receptors-kir-types-on-heparin-induced-thrombocytopenia-hit
#6
Jason H Karnes, Christian M Shaffer, Robert Cronin, Lisa Bastarache, Silvana Gaudieri, Ian James, Rebecca Pavlos, Heidi Steiner, Jonathan D Mosley, Simon Mallal, Joshua C Denny, Elizabeth J Phillips, Dan M Roden
OBJECTIVES: Heparin-induced thrombocytopenia (HIT) is an unpredictable, life-threatening, immune-mediated reaction to heparin. Variation in human leukocyte antigen (HLA) genes is now used to prevent immune-mediated adverse drug reactions. Combinations of HLA alleles and killer cell immunoglobulin-like receptors (KIR) are associated with multiple autoimmune diseases and infections. The objective of this study is to evaluate the association of HLA alleles and KIR types, alone or in the presence of different HLA ligands, with HIT...
July 8, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28686681/kir-and-their-hla-class-i-ligands-two-more-pieces-towards-completing-the-puzzle-of-chronic-rejection-and-graft-loss-in-kidney-transplantation
#7
Roberto Littera, Gianbenedetto Piredda, Davide Argiolas, Sara Lai, Elena Congeddu, Paola Ragatzu, Maurizio Melis, Elisabetta Carta, Maria Benigna Michittu, Donatella Valentini, Luisella Cappai, Rita Porcella, Francesco Alba, Maria Serra, Valentina Loi, Roberta Maddi, Sandro Orrù, Giorgio La Nasa, Giovanni Caocci, Roberto Cusano, Marcella Arras, Mauro Frongia, Antonello Pani, Carlo Carcassi
BACKGROUND: Kidney transplantation is a life-saving treatment for patients with end-stage renal disease. However, despite progress in surgical techniques and patient management, immunological rejection continues to have a negative impact on graft function and overall survival. Incompatibility between donors and recipients for human leukocyte antigens (HLA) of the major histocompatibility complex (MHC) generates a series of complex cellular and humoral immune response mechanisms that are largely responsible for rejection and loss of graft function...
2017: PloS One
https://www.readbyqxmd.com/read/28677766/human-decidua-mesenchymal-stem-cells-regulate-decidual-natural-killer-cell-function-via-interactions-between-collagen-and-leukocyte%C3%A2-associated-immunoglobulin%C3%A2-like-receptor-1
#8
Qiang Fu, Xuejing Man, Min Yu, Yongli Chu, Xiying Luan, Hailan Piao, Jiangnan Xue, Changzhu Jin
The development of maternal tolerance to the fetal allograft in critical for the maintenance of the pregnancy, and it is accompanied by the development of a special decidual natural killer (dNK) cell tolerance phenotype. To understand the factors that influence dNK cells during early pregnancy, the present study aimed to identify mesenchymal stem cells (MSCs) from human first‑trimester deciduas, termed decidual MSCs (DMSCs), and to investigate the effect of DMSCs on the regulation of dNK cells via collagen...
July 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28659916/hla-bw4-i-80-isoform-differentially-influences-clinical-outcome-as-compared-to-hla-bw4-t-80-and-hla-a-bw4-isoforms-in-rituximab-or-dinutuximab-based-cancer-immunotherapy
#9
Amy K Erbe, Wei Wang, Patrick K Reville, Lakeesha Carmichael, KyungMann Kim, Eneida A Mendonca, Yiqiang Song, Jacquelyn A Hank, Wendy B London, Arlene Naranjo, Fangxin Hong, Michael D Hogarty, John M Maris, Julie R Park, M F Ozkaynak, Jeffrey S Miller, Andrew L Gilman, Brad Kahl, Alice L Yu, Paul M Sondel
Killer-cell immunoglobulin-like receptors (KIRs) are a family of glycoproteins expressed primarily on natural killer cells that can regulate their function. Inhibitory KIRs recognize MHC class I molecules (KIR-ligands) as ligands. We have reported associations of KIRs and KIR-ligands for patients in two monoclonal antibody (mAb)-based trials: (1) A Children's Oncology Group (COG) trial for children with high-risk neuroblastoma randomized to immunotherapy treatment with dinutuximab (anti-GD2 mAb) + GM-CSF + IL-2 + isotretinion or to treatment with isotretinoin alone and (2) An Eastern Cooperative Oncology Group (ECOG) trial for adults with low-tumor burden follicular lymphoma responding to an induction course of rituximab (anti-CD20 mAb) and randomized to treatment with maintenance rituximab or no-maintenance rituximab...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28644246/effects-of-exercise-on-the-immune-function-of-pediatric-patients-with-solid-tumors-insights-from-the-papec-randomized-trial
#10
Carmen Fiuza-Luces, Julio R Padilla, Jaime Valentín, Elena Santana-Sosa, Alejandro Santos-Lozano, Fabián Sanchis-Gomar, Helios Pareja-Galeano, Javier S Morales, Steven J Fleck, Margarita Pérez, Alvaro Lassaletta, Luisa Soares-Miranda, Antonio Pérez-Martínez, Alejandro Lucia
The purpose of this study was to assess the effects of an in-hospital exercise intervention during neoadjuvant chemotherapy on the inflammatory profile and immune cell subpopulation in 20 children with solid tumors (control [n = 11] and exercise group [n = 9]). Although no significant interaction (group × time) effect was found with an analysis of variance test, we found a trend toward an interaction effect for natural killer cells expressing the immunoglobulin-like receptor KIR2DS4, with their numbers remaining stable in the exercise group but increasing in controls...
June 21, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28637877/ex-vivo-expanded-adaptive-nk-cells-effectively-kill-primary-acute-lymphoblastic-leukemia-cells
#11
Lisa L Liu, Vivien Béziat, Vincent Y S Oei, Aline Pfefferle, Marie Schaffer, Sören Lehmann, Eva Hellström-Lindberg, Stefan Söderhäll, Mats Heyman, Dan Grandér, Karl-Johan Malmberg
Manipulation of human natural killer (NK) cell repertoires promises more effective strategies for NK cell-based cancer immunotherapy. A subset of highly differentiated NK cells, termed adaptive NK cells, expands naturally in vivo in response to human cytomegalovirus (HCMV) infection, carries unique repertoires of inhibitory killer cell immunoglobulin-like receptors (KIR), and displays strong cytotoxicity against tumor cells. Here, we established a robust and scalable protocol for ex vivo generation and expansion of adaptive NK cells for cell therapy against pediatric acute lymphoblastic leukemia (ALL)...
June 21, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28632753/mait-cells-launch-a-rapid-robust-and-distinct-hyperinflammatory-response-to-bacterial-superantigens-and-quickly-acquire-an-anergic-phenotype-that-impedes-their-cognate-antimicrobial-function-defining-a-novel-mechanism-of-superantigen-induced-immunopathology
#12
Christopher R Shaler, Joshua Choi, Patrick T Rudak, Arash Memarnejadian, Peter A Szabo, Mauro E Tun-Abraham, Jamie Rossjohn, Alexandra J Corbett, James McCluskey, John K McCormick, Olivier Lantz, Roberto Hernandez-Alejandro, S M Mansour Haeryfar
Superantigens (SAgs) are potent exotoxins secreted by Staphylococcus aureus and Streptococcus pyogenes. They target a large fraction of T cell pools to set in motion a "cytokine storm" with severe and sometimes life-threatening consequences typically encountered in toxic shock syndrome (TSS). Given the rapidity with which TSS develops, designing timely and truly targeted therapies for this syndrome requires identification of key mediators of the cytokine storm's initial wave. Equally important, early host responses to SAgs can be accompanied or followed by a state of immunosuppression, which in turn jeopardizes the host's ability to combat and clear infections...
June 2017: PLoS Biology
https://www.readbyqxmd.com/read/28631269/missing-hla-c-group-1-ligand-in-patients-with-aml-and-mds-is-associated-with-reduced-risk-of-relapse-and-better-survival-after-allogeneic-stem-cell-transplantation-with-fludarabine-and-treosulfan-reduced-toxicity-conditioning
#13
Avichai Shimoni, Luca Vago, Massimo Bernardi, Ronit Yerushalmi, Jacopo Peccatori, Raffaella Greco, Noga Shem-Tov, Alessandro Lo Russo, Ivetta Danylesko, Arie Apel, Chiara Bonini, Maria Teresa Lupo Stanghellini, Arnon Nagler, Fabio Ciceri
Reduced-toxicity conditioning with fludarabine and treosulfan is a dose-intensive regimen with enhanced anti-leukemia effect and acceptable toxicity in AML/MDS. HLA-C regulates natural-killer (NK) cell function by inhibiting Killer immunoglobulin-like receptors (KIR) and is divided into C1 and C2 epitopes. The missing-ligand theory suggests that missing recipient KIR ligands drives NK-alloreactivity after SCT, in the absence of HLA-mismatch by activating unlicensed donor NK cells. We analyzed SCT outcomes in 203 patients with AML/MDS, median age 58 years, given SCT from matched-siblings (n=97) or matched-unrelated donors (n=106), using two treosulfan doses (total 36 or 42 gr/m2)...
June 19, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28603523/kir3ds1-mediated-recognition-of-hla-b51-modulation-of-kir3ds1-responsiveness-by-self-hla-b-allotypes-and-effect-on-nk-cell-licensing
#14
Simona Carlomagno, Michela Falco, Maria Bono, Claudia Alicata, Lucia Garbarino, Michela Mazzocco, Lorenzo Moretta, Alessandro Moretta, Simona Sivori
Several studies described an association between killer-cell immunoglobulin-like receptor (KIR)/HLA gene combinations and clinical outcomes in various diseases. In particular, an important combined role for KIR3DS1 and HLA-B Bw4-I80 in controlling viral infections and a higher protection against leukemic relapses in donor equipped with activating KIRs in haplo-HSCT has been described. Here, we show that KIR3DS1 mediates positive signals upon recognition of HLA-B*51 (Bw4-I80) surface molecules on target cells and that this activation occurs only in Bw4-I80(neg) individuals, including those carrying particular KIR/HLA combination settings...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28582449/hiv-1-adaptation-to-nk-cell-mediated-immune-pressure
#15
Marjet Elemans, Lies Boelen, Michael Rasmussen, Søren Buus, Becca Asquith
The observation, by Alter et al., of the enrichment of NK cell "escape" variants in individuals carrying certain Killer-cell Immunoglobulin-like Receptor (KIR) genes is compelling evidence that natural killer (NK) cells exert selection pressure on HIV-1. Alter et al hypothesise that variant peptide, in complex with HLA class I molecules binds KIR receptors and either increases NK cell inhibition or decreases NK cell activation compared to wild type peptide thus leading to virus escape from the NK cell response...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28579987/killer-immunoglobulin-like-receptor-allele-determination-using-next-generation-sequencing-technology
#16
Bercelin Maniangou, Nolwenn Legrand, Mehdi Alizadeh, Ulysse Guyet, Catherine Willem, Gaëlle David, Eric Charpentier, Alexandre Walencik, Christelle Retière, Katia Gagne
The impact of natural killer (NK) cell alloreactivity on hematopoietic stem cell transplantation (HSCT) outcome is still debated due to the complexity of graft parameters, HLA class I environment, the nature of killer cell immunoglobulin-like receptor (KIR)/KIR ligand genetic combinations studied, and KIR(+) NK cell repertoire size. KIR genes are known to be polymorphic in terms of gene content, copy number variation, and number of alleles. These allelic polymorphisms may impact both the phenotype and function of KIR(+) NK cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28577615/maternal-allo-recognition-of-the-fetus
#17
REVIEW
Ashley Moffett, Olympe Chazara, Francesco Colucci
Immunological adjustments are needed to accommodate the close contact between two genetically different individuals, the mother and her baby, during mammalian pregnancy. Contact occurs between fetal somatic or placental cells that enter the maternal systemic circulation or between uterine immune cells and the invading extravillous trophoblast. Here we discuss two main types of maternal allo-recognition of the fetus. One depends on avoidance of maternal T cells recognizing and responding to paternally-derived non-self human leukocyte antigens class I and class I allotypes...
June 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28571758/killer-cell-immunoglobulin-like-receptor-kir-and-human-leukocyte-antigen-hla-class-i-genetic-diversity-in-four-south-african-populations
#18
Nikki L Gentle, Shayne Loubser, Maria Paximadis, Adrian Puren, Caroline T Tiemessen
Killer-cell Immunoglobulin-like Receptor (KIR) and Human Leukocyte Antigen (HLA) genotypes vary considerably between individuals and populations due to KIR/HLA allelic variation and variable haplotype configurations of KIR. HLA mediate natural killer cell activity by serving as KIR ligands. KIR/HLA polymorphisms associate with both disease susceptibility and severity. We determined the frequencies of KIR, KIR genotypes and KIR-HLA combinations in 364 healthy individuals from four South African populations. Study participants included black African (n=167), Caucasian (n=97), Mixed ancestry (n=50) and Indian (n=50) individuals...
May 29, 2017: Human Immunology
https://www.readbyqxmd.com/read/28569259/revealing-complete-complex-kir-haplotypes-phased-by-long-read-sequencing-technology
#19
D Roe, C Vierra-Green, C-W Pyo, K Eng, R Hall, R Kuang, S Spellman, S Ranade, D E Geraghty, M Maiers
The killer cell immunoglobulin-like receptor (KIR) region of human chromosome 19 contains up to 16 genes for natural killer (NK) cell receptors that recognize human leukocyte antigen (HLA)/peptide complexes and other ligands. The KIR proteins fulfill functional roles in infections, pregnancy, autoimmune diseases and transplantation. However, their characterization remains a constant challenge. Not only are the genes highly homologous due to their recent evolution by tandem duplications, but the region is structurally dynamic due to frequent transposon-mediated recombination...
June 1, 2017: Genes and Immunity
https://www.readbyqxmd.com/read/28565743/-distribution-of-donor-specific-akir-after-unrelated-allogeneic-hematopoietic-stem-cell-transplantation
#20
H H Zhang, J He, X J Bao, X Hu, M Wang, J Zhang, X J Wu
Objective: To analyze the distribution and proportion of donor-specific activated killer cell immunoglobulin like receptor (aKIR) genes and their clinical application values in unrelated allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: Retrospective analyses of KIR genotyping using polymerase chain reaction with sequence specific primers (PCR-SSP) were performed in 216 pairs of donors and recipients. Results: The frequency of donor-specific KIR genes was 53.7% (116/216) in 216 patients receiving unrelated allo-HSCT, with the frequency of 78...
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
keyword
keyword
41013
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"